| Patents for C01C 3 - Cyanogen; Compounds thereof (1,688) |
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| 06/02/1993 | EP0544272A1 Solid state cyanocobaltate complexes |
| 05/26/1993 | CA2083209A1 Solid state cyanocobaltate complexes |
| 05/04/1993 | US5208335 Reversible oxygen sorbent compositions |
| 04/20/1993 | US5204079 HCN by catalytic ammoxidation of crude acetonitrile |
| 03/17/1993 | CN2128244Y Apparatus for preparing hydrogen cyanide |
| 03/04/1993 | DE4128201A1 Sintered alumina reaction tube - contg. spiral insert, esp. for high temp. hydrogen cyanide synthesis |
| 01/27/1993 | EP0265513B1 Method and apparatus for measuring cyanide |
| 01/13/1993 | CN1067828A Organic and inorganic sulfur removing technology at normal temp |
| 01/05/1993 | US5176894 Process for making improved corrosion preventive zinc cyanamide |
| 12/23/1992 | WO1992022499A1 Low pressure drop, high surface area ammonia oxidation catalyst and catalyst for production of hydrocyanic acid |
| 12/23/1992 | EP0519699A1 Low pressure drop, high surface area oxidation catalyst and catalyst for production of hydrocyanic acid |
| 12/23/1992 | CA2111197A1 Low pressure drop, high surface area ammonia oxidation catalyst and catalyst for production of hydrocyanic acid |
| 12/08/1992 | US5169883 Product for the absorption of dissolved ions |
| 12/08/1992 | US5169615 Acidifying slurry containing metal cyanide complex, then treating with sulfide, basification to purge hydrogen cyanide; recovering precious metals |
| 12/02/1992 | CN1066636A Preparation method of cuprous cyanide |
| 11/24/1992 | US5166432 Catalytic decomposition of urea |
| 11/11/1992 | CN1066045A Treatment of aqueous solution containing potassium or sodium |
| 11/10/1992 | US5162404 Ion-absorbent sponge product |
| 11/03/1992 | US5160721 Catalyst regeneration with phosphorous and tellurium or their compounds |
| 11/03/1992 | CA1309567C Process for the preparation of calcium cyanamide |
| 10/29/1992 | DE4113212A1 Cyanide standard soln. contg. complex cyanide, pref. tetra:cyano-zincate - easily releasing cyanide, which is stable and less toxic than alkali cyanide |
| 10/27/1992 | US5158922 Filterable; controlling order of reagant addition, temprature and stoichiometric ratios |
| 10/27/1992 | US5158787 Vapor phase catalytic ammoxidation of methanol |
| 10/07/1992 | CN1065052A Potassium ferricyanide recovering method and its products |
| 10/07/1992 | CN1018561B Locally heating device for asphalt storehouse |
| 09/23/1992 | EP0504727A1 Cyanocobaltate oxygen adducts |
| 09/20/1992 | CA2062696A1 Cyanocobaltate oxygen adducts |
| 08/18/1992 | US5139988 With at least one of vanadium, molybdenum or tungsten; oxidation or ammoxidatin catalyst |
| 07/22/1992 | CN1062884A Preparation process for high-content sodium rhodanide |
| 07/22/1992 | CN1062854A Process for recovering mixing gas of hydrogen sulphide and ammonia |
| 07/21/1992 | US5132269 Slurrying, drying and firing to form an oxidation catalyst |
| 07/07/1992 | CA1304697C Ammonia separation using semipermeable membranes |
| 07/01/1992 | CN1017237B Process for production of sodium cyanide |
| 06/30/1992 | US5126466 Cyanocobaltate oxygen adducts |
| 06/02/1992 | US5118487 Process for producing chlorosulfonyl isocyanate |
| 04/29/1992 | CN1016411B Treatment of cyanide precipitates |
| 04/02/1992 | WO1992004966A1 Surface stabilized sources of isocyanic acid |
| 03/25/1992 | EP0476579A1 Iron antimony-containing metal oxide catalyst composition and process for producing the same |
| 03/18/1992 | EP0475351A1 Iron-antimony-molybdenum containing oxide catalyst composition and process for preparing the same |
| 03/18/1992 | EP0475129A1 Process for the preparation of cyanamide |
| 03/18/1992 | EP0474972A1 Catalytic net preparation process, the catalytic net and use thereof |
| 03/17/1992 | US5096946 In mine drainage water, amide reaction product of polyethylenimine and nitrilotriacetic acid, sponge |
| 03/10/1992 | US5094990 Iron-antimony-phosphorus-containing metal oxide catalyst for oxidation |
| 02/25/1992 | US5091553 Reacting adduct of isocyanic acid and tertiary amine with unsaturated compound |
| 02/22/1992 | CA2049414A1 Process for the production of cyanamide |
| 02/01/1992 | WO1992002301A1 Improvements in or relating to catalysts and getter systems |
| 02/01/1992 | CA2088150A1 Catalysts and getter systems |
| 01/15/1992 | CN1057819A Production process for solid sodium cyanide |
| 01/07/1992 | US5078980 Process for the removal of isocyanic acid from a mixture of isocyanic acid and ammonia |
| 12/31/1991 | US5077105 Gas tight; thin, uniform interior coating; heat resistant; hig h strength |
| 12/03/1991 | US5070201 Process for the preparation of aminopyrimidines |
| 12/03/1991 | CA1292748C Stable thiocyanogen composition |
| 11/12/1991 | US5064540 Method for using water-treating sponges |
| 10/22/1991 | US5059367 Adding water, binder, plasticizer to alumina powder; kneading; extruding, pre-sintering, cooling, interior; sintering; gas-tight, heat resistant |
| 10/22/1991 | CA1290919C Decomposition of ammonium thiocyanate |
| 10/15/1991 | US5057477 Cyanohydrination catalyst and process |
| 10/09/1991 | CN1055205A Solid multi-component membranes, electrochemical reactor components reactor for oxidation reactions |
| 10/09/1991 | CN1014230B Recovery of ammonium thyiocyanate |
| 08/27/1991 | US5043444 Process for the preparation of asymmetrically substituted ureas |
| 08/14/1991 | DE4003750A1 Thixotropic form aluminium hydroxy-thiocyanate gel - astringent and microbicide useful for treating wounds, with no side effects |
| 08/13/1991 | US5039643 Method for the production of catalytically active coatings for the production of hydrogen cyanide |
| 07/31/1991 | EP0439099A1 Process for the preparation of cyanamide |
| 07/31/1991 | EP0438902A2 Electrochemical reactors and multicomponent membranes useful for oxidation reactions |
| 07/25/1991 | DE4001805A1 Cyanamide prodn. in high yield and selectively - from urea or cyanuric acid, isocyanuric acid in presence of microporous alumo:phosphate or zeolite catalyst |
| 06/25/1991 | US5026534 Process for the preparation of aqueous ammonium thiocyanate solutions |
| 06/19/1991 | EP0432876A1 Process for production of hydrogen cyanide from crude acetonitrile |
| 06/05/1991 | CN1012728B Preparation of potassium ferrocyanide by ion-exchange technology |
| 05/21/1991 | US5017356 And acetic anhydride |
| 05/21/1991 | US5017355 Process for producing cyanamide |
| 05/02/1991 | EP0424849A1 Process for the preparation of aminopyrimidines |
| 03/26/1991 | US5002984 Product for the absorption of metal ions |
| 03/13/1991 | EP0416236A2 Process for the isolation isocyanic acid from a gaseous mixture of isocyanic acid and ammonia |
| 03/07/1991 | DE3928575A1 Removal of ammonia from isocyanic acid-ammonia mixts. - by adding an ether at specific temp. and cooling, so that an isocyanic acid-ether adduct condenses out and ammonia is sepd. as gas |
| 02/19/1991 | CA2023387A1 Polymer product for the selective absorption of dissolved ions |
| 02/06/1991 | CN1049043A Locally heating device for asphalt storehouse |
| 01/30/1991 | EP0410169A2 Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates |
| 01/30/1991 | EP0410168A2 Process for the preparation of asymmetrically substituted ureas |
| 01/16/1991 | EP0407809A1 Preparation process of a catalytically active layer for the manufacture of cyanhydric acid |
| 01/02/1991 | CN1048169A Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions |
| 01/01/1991 | US4981830 Oxidation, dehydrogenation, ammoxidation |
| 01/01/1991 | US4981670 Hydrogen cyanide from acetonitrile, oxidation, ammoxidation |
| 12/27/1990 | EP0404529A1 Process for preparing iron-antimony-phosphorus-containing metal oxide catalysts for oxidation |
| 12/26/1990 | CN1048017A Prodn. of cyanides by making use of hydroxy propanone cyanide as raw material instead of sodium (potassium) cyanide |
| 11/28/1990 | EP0399833A1 Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions |
| 11/15/1990 | WO1990013405A1 Aluminium oxide tubes and process for manufacturing them |
| 11/15/1990 | DE3915428A1 Aluminiumoxidrohre und verfahren zu ihrer herstellung Alumina tubes and process for their production |
| 10/24/1990 | CN1046316A Process of recovery of cyanogen in final cooling water of coke gas |
| 10/23/1990 | US4965060 Quenching with nickel alloy heat exchanger; preventing decomposition |
| 10/17/1990 | EP0392221A1 Process for the production of hydrogen cyanide |
| 10/09/1990 | US4961914 Preliminary catalyst of al2o3 coated with al and pt ions and reduced; reacting ammonia and hydrocarbon using catalyst |
| 08/07/1990 | US4946819 Phosphorus-antimony-containing catalyst for oxidation |
| 06/12/1990 | US4933054 Solid electrolyte with coating on one surface of conductive metal, metal oxide or mixture, second surface coated with metal, metal oxide or mixture |
| 05/15/1990 | US4925642 Process for the preparation and the isolation of aromatic nitriles |
| 05/09/1990 | CA2002406A1 Production of a chemical |
| 05/02/1990 | CN1007829B Method for removing sulfate from electrolytic brine |
| 04/10/1990 | EP0265513A4 Method and apparatus for measuring cyanide. |
| 03/29/1990 | DE3832883A1 Process for preparing alkali metal cyanides |
| 03/28/1990 | EP0360555A1 Process for preparing sodium cyanide |
| 03/07/1990 | EP0357244A2 Method for converting nitriles to amides and amides to nitriles |
| 02/20/1990 | US4902301 Process for shipment of sodium cyanide slurries |